Type-writing machine.



No. 851,287. PATENTED APR. 23, 1907. F. B. HAUN. TYPE WRITING MAGHINE.

APPLICATION FILED DEU.24,1906.

i l ll llll ll 14/099858.- g BY 1? MW HIGH/V57 FRANKLIN E. HAUN, OF SYRACUSE, NEW YORK.

TYPE-WRITINGYMACHINE.

Specification of Letters Patent.

Patented April 23, 1907,

Application filed December 24,1906. Serial No. 349,219-

' bars are pivoted in common to a segmental or inverted arc-shaped bar secured to the frame of the machine in various ways.

The invention has special reference to the gonnection of the type-bar to its supporting- The objects of the invention are to provide simple and efiective means for readily and securely connecting the type-bars to the supporting-bar, and which shall facilitate the travel of the interposed antifriction bearings and shall also afiord the advantages of permitting the type-bar to be removed from the supporting-bar without disturbing the companlon type-bars.

To that end the invention consists in the improved construction and combination of the com onent parts of a coupling by means of whic the type-bar is connected to the supporting-bar as hereinafter described and claimed. j

My invention is fullyillustrated in the accompanying drawings, in which Flgure 1 is a detail rear side view of the segmental bar shown partly in dotted lines and disposed in the position in which it is used in a .front-strike writing-machine; a type-bar being attached in accordance with my invention and re resented as striking the usual platen also in icated by dotted lines; Fig. 2 is an enlarged transverse section of the segmental supportin -bar and a portion of a typebar disposed in normalposition Fig. 3 is a vertical section taken on the line X-X in;Fig..2; Fig. 4 is avertical section taken on the line -'Y-YinFig. 3; and Fig. 5 is an enlarged rear side view of a ortion of-the' se ental'bar and a portion 0 a type-bar in printing position.

In the said. drawings like numeralsof refer;

enceindicate like parts:'

1denotes thesegmental bar formedround in cross-section and dis osed in the position of an inverted arc, an which may be attached in any suitable and convenient manner to the type-writer-frame (not shown) to serve as a common support for the set of type-bars, and 2, denotes the usual platen designed to be mounted upon thecarriage of the machine in the well known manner. The. said segmental bar is provided with a series of circumferential V-shaped grooves 33 disposed radially in relation to a common rinting-point, indicated at 4, on the p aten, it being obvious that these grooves correspond in number to the type-bars to be em loyed.

5 denotes t e t e-bar which may be composed ofany suitab e metal and consists of the usual thin late tapered to one end and carrying on sald end the usual type indicated at 6.

The larger end of the type-bar 5- is formed with a segmental yoke 7 adapted to straddle the supporting-bar 1.. The ends of said yoke are formed with outwardly projectin ears -88, dis osed with their opposed aces in lines exten in tangentially from diametric opposite sides 0 the support ing-bar 1. Said ears are thus at sufficient distance apart to allow the yoke to be placed astride the supportin bar or to be dismounted therefrom as may e required for repairs or renewal. Within the said yoke 7- is suitably secured a section of a bearing-ring 10- disposed concentric therewith and formed with an internal V-shaped groove 1 1 corresponding with a groove 3 in the supporting bar. The two corres onding grooves 3- and 10-- form a bal race in whichis disposed a set of antifriction-balls 12.12- of suflicient number to extend more than one-half the distance around the ball-race and grouped so as to leave at the end of the group a blank path for the travel of the group when the t e-bar is swung to and from the platen as s own in s. 2 and 4.

section'of bearing-ring 10- as shown, still hile I prefer to provide the yoke with a at the same time it will be understood that I the said ring-section maybe dispensed with, in

which instance the internal groove '11--. I would o viously be formed m-the yoke,=and

theinner diameter of the yoke decreased proportionately with the thickness of the removed ring-section.

To confinethe balls in the yoke I; provide the ears 8''of said yoke with suitablestops extending into-the ball-race or groove'3 of the supporting-bar .-1.'.

- form said stops by providing the ears 88' with eyes 9,9 and inserting in said eyes a "rod .-13 one end of which is provided with a head 13 bearing on the exterior with said bar.

- the greater clear the segmental bar, and'thus' the type bar but is out of contact guard against-friction and thus allow free ac' tion of the type-bar, said rod being at the.

of-one ear and its oppositejendis screwthreaded andengages threads in the eye of the other of said ears.

It will be observed that the rod '13 prevents the, balls from escaping from the yoke as clearly shown inFigs. 2 and 4 of the drawings, and therefore said rod constitutes I a barrier which terminates the passage of the balls atthe opening between" the ends of the yoke. Said barrier located as described and shownis essential to the invention inasmuch as it retainsthe b'alls'arranged m a group ex}- tending around the greaterportion of the cir-' cumference of the supporting-bar which serves to maintain the yoke in concentricity This screw-rod extends through the groove 3 in the segmental with the bar to spondingly with the V-shaped groove 3,

as indicated at .1414,fand are spaced suflficient' distance apart to allow them to bars may bere'adily and independently removed from'the segmental bar and placed thereon by simply The ear having the threaded eye is prefer- 4 ably split lengthwise as indicated at 15 to permit the ear tobe expanded slightly by the rod entering the eyej-Q- ofsaid ear the threads ofthe rod are this caused to obtain a-firm hold in the earand efiectually prevent the rod from Working loose. It will be observed that by. tightening the rod from time to time the yoke and bearing ring-section may be contracted slightly to take up the wear on the bearings.

What I claim 1s:'

1. The combination, with the sll ipporting bar, of the type-bar provided wi a yoke I preferably bar, and means removably atta the ends of the porting-bar and grouped to taking off the screw-rod.

straddling said supportingbar and formed with an openlng at its ends, balls in the yoke arranged in a group occupying more than one half of the circumference of the sup ortingbar, and means for arresting the bal s at the ends of theaforesaid opening.

2. Thecombination, with the su portingbar, of the ty1pebar provided a yoke surrounding t e greater portion of the cirformed with ears on its ends, balls in the yoke arranged in a group occupying more than one half of the circumference of the sup ortings cherf to the cumferenc e of the supporting-bar, and' aforesaid ears and terminating the ball-bearings at the ends of the yoke.

ings, the t 80' 3. In combination with the supportingbar provided with circumferential ball-bear e-bar formed with a segmental yoke stradd ing the supporting-bar and ter" ininating inoutwardly projecting ears disposed with their opposed faces in linesex; I tending tangentially from opposite s'idesofj" the SuPPOrtingbar} ballssrmnged in a ou'pl occupylng more than one half of the cn'cum ference of the supporting-bar and leaving a blank path from the end of the groupto the adjacent ear, and means attached to the aforesaid ears andterminating the passage of the balls thereat. v :7

4. In combination with the supporting the t stradd ing the supporting-bar and termmat- .bar provided with circumferential grooves,

e-bar formed With'a segmental yoke ing in cars disposed with their opposite sides in .lines extending tangentially from oppositesides of the supporting-bar, a transverse rod extending through the groove of the supporting-bar and secured to the aforesaid ears, and

balls interposed between the yoke 'andmsu-pl;*

eave a an I path between one end of the group and transverse rod.

5. In" combination bar the t e-bar formed with a segmentalyoke straddli mg in outwardly-projecting ears disposed withtheir opposed sldes in lines extending.

tangentially from opposite sides of the supportingbar, said ears being provided with eyes disposed in line with each other and one with the supportingfl provided with circumferential -grooves,'-

I'IVO ng the supporting-bar and termmat of said eyes screw-threaded and the said ear I split lengthwise of the eye, and a bolt insert ed in said eyes and having one end provided with a head and the opposite end screwthe said ear and balls interposed between the yoke and supporting-bar and grouped to leave a blank path between one end of the group and the aforesaid rod as set forth.

6, In combination with the supportingbar, a type-bar equipped with a coupling con threaded and assin through the eye of the split ear and c ampe therein by COIIIPIGSSIOII' sisting of-& yoke of segmental shape surroundaforesaid opening, and a rod extendin across ingthe greater portion of the circumference the opening and adjustably connectv to the [O of said supportlng-bar and having between ends of the oke to contract the same and its ends an opening of a width approximately compensate or the wear of the ball-bearings.

equal to the diameter of the supporting-bar, FRANKLIN E. HAUN. balls interposed between the o leand sup- \Vitnesses:

porting-bar and grouped to eave a, blank J. J. LAASS,

path between the front of the group and the G. KAISER. 

